Wow- this is so normal! Those raspberries...enjoy them before they turn to screaming! My son growls like a mad dog. :)
Your son sounds bright and precocious, which means he'll be a handful now that he's developing independence and all those cool new skills that accompany it. Please don't worry about him being a brat right now! I spoke at length with two doctors and even a child psychologist about my 10 month old, who throws massive tantrums sometimes(He started young, too!) They all assured me that it's completely normal, especially with bright children!
There's no way to punish or stop babies' angry responses at this point. It's not about them being spoiled or becoming a brat. It's about them getting frustrated because their brains are too smart for their bodies right now. They can't talk or move the way they want to. So I took their advice, and I try to avoid situations that cause tantrums. I respond calmly to my son's anger, and carefully offer alternatives. ("Here's a spoon! Can I trade you this spoon for that fork? Thank you soooooo much!!!" etc.) I also just hold him calmly and try to soothe him when he pitches a fit.
I'm not saying give in- that doesn't work, and sometimes they're doing things that aren't safe! But be sweet and calm and validating, and redirect quickly. ("I know you're so mad right now. You really wanted that glass, didn't you? I'm sorry sweetie. Let's take a walk!") You'll find, as your son grows older, that certain things trigger tantrums. And you can avoid a bunch of them!
It's rough, I know. Once they're moving a lot, it's even harder! But everyone tells me it's a phase, and it's just prep for the toddler years... Yikes!